Which outcome occurs when a progressive cavity pump rotor experiences excessive eccentric motion?

💡 Explanation

When a progressive cavity pump rotor has excessive eccentric motion, increased shear stresses occur because the rotor rotates unevenly within the stator's shape, leading to pulsating flow. Therefore, flow pulsations and pressure spikes result, as opposed to priming, efficiency or viscosity, which depend on different aspects.

• Which outcome occurs when applying ultrasonic vibrations during metal forging?
• Which operational risk increases with prolonged operation of a power transformer under highly reactive loads?
• Which outcome occurs when excessive cylinder pressure overwhelms hydrodynamic lubrication in an engine?
• Which outcome results in a three-phase power distribution transformer when hysteresis losses increase excessively due to elevated operating temperatures?
• Which outcome occurs when dissolved gas exceeds solubility limit in hydraulic actuator fluid flowing across a sharp orifice?
• Which outcome arises when eccentrically loaded support columns experience excessive base rotation?